Nicholas braun



Dec. 18, 1928.

N. BRAUN OUTLET HOOD v Filed May 14, 1927 FIG. 11]

Inventor NICHOLAS bKAUN Patented Dec. 18, 1928.

UNITED STATES NICHOLAS BRAUN, OF ST; LOUIS, MISSOURI.

OUTLET HOOD.

Application filed May 14,

My invention relates to improvements in outlet hoods, and more particularly to hoods or elbows adapted to be connected to the discharge end of heaters, blowers, ventilators, etc, so as to direct the gases discharged there from in any desired direction.

Another object of my invention is to so.

construct an elbow or hood of the kind described, which shall: oscillate relatively to the heater or other device to which the hood is connected, thus throwing the gases more uniformly over a large area, and resulting in liable an eflicient for use wherever found applicable. 7

Many other objects and advantages of the construction herein shown and described, will be obvious to those skilled in the art to which this invention appertains, from the disclosures herein given.

To this end, my invention consists in the novel construction,arrangement and combination of parts herein shown and described,

anduses mentioned, and more particularly pointed out in the claims.

In the drawings, "wherein like'reference characters indicate like or corresponding parts throughout the views,

Figure I is a side elevation of my invention as applied to a heater;

Figure II is a vertical cross-section, taken substantially through the upper part of the heater; and V Figure III is a horizontal cross-section, taken substantially along the line 33 of Figure II.

In the drawings, wherein I have illustrated the preferred embodiment of my invention, A indicates any suitable source of heat gen-' erating unit, ventilator, dehydrator or the like, and in the construction shown, the part A is shown as a heater, especially adaptable for industrial or factory heating, the same having a steam inlet 1 and an outlet 2.

Adjacent the lower end of the heater A is an air intake 3, the same preferably having a fan arranged therein so as to force the air 1927, Serial No. 191,483,

from the room into and through said intake and up over the steam coils and outwardly of the heater through the open top end or dis charge end. 4 thereof, this discharge end being preferably reduced in. area, as shown, andpio vided with a neck portion 5. For rotating the fan in the heater, a pulley 6 is fixed on the fan shaft, and may be driven by any snitable means, as by a belt or the like, shown in dotted lines in Figure I.

In order to direct the heated gases passing through the discharge end of the heater into a substantially horizontal direction and into the room at the proper height, an elbow or hood B, is generally proi ided, this hood b \i ng positioned over the outlet end of the heater, and in a fixed position reiatively thereto, The gases discharged through the outlet end ,of the elbow, or if the device is used to draw gases thereinto from the room, act in a more or less limited area, and accordingly I have provided a device to overcome this defect. and to increasethe useful working range of the device by making the hood oscillate through a predetermined arc. In this construction, the hood B is prefer ably reinforced about the lower or horizontal intake end thereof, by an angle iron 7, the intake end of the hood or elbow being" slightly larger in diameter than the outer surface of the outlet end of the heater neclrfnas shown, so as to cause no friction therebetween. A vertical shaft or spindle 8, is arranged within the hood, said hood being supported on the upper end of the shaft through an anti-trio tion bearingball 9, so that the shaft may rotate freely and independently of the hood ii. A pair'of spiders or cross-ties l0 and 11, respectively, are arranged across the opening 4, the shaft 8 being journalled through said ties, there being one or more washers or thrust bearings 12 carried by the shaft and support ing the shaft at its lower end, as shown. A third spider or cross-tie 13 is fixed at its ends to the lower end of the elbow, the shaft 8 passing freely therethrough, one of the arms of the spider 13 having an elongated slot 14 therethrough, for a purpose to be more clear 1v hereinafter described.

A pinion 15 is carried by the spindle 8,

the pinion meshing with a gear 16 carried by a stub shaft journalled in the spider 10, as shown, said stub shaft also carrying a pinion 17 adapted to mesh with a gear 18 journalled in the spider, thereby forming a reduc tion gearing between the speed of the shaft and that otthe last gear 18 of thetrain. A link 19 has one end pivoted adjacent the rim ofthe gear 18, the other end of said link being pivotally connected to a bolt 20 that is 'slidahle in the elongated slot 14- of the arm of thespider 13, A nut 21, or other suitable securing means may be used for adjustably maintaining the bolt 20 at any desiredposition along the length of the slot,;to thereby centrol-thearc of" oscillation of the hood; As

the bolt is inovedtoward the left, inwardly along the'slot, the arc of'oscillation of the hood is decreased or shortened, while an adjustment in the opposite direction will lengthen the are through which the hood will travel.

In order that will be automatic in its action, I have pro-- vided the following drive means for the spindie. A. fan 22 is carried at the lower end of the shaft, and as the gases pass the fan they cause it to rotate, the speed of rotation being of course, dependent upon the force of the gases passing-the same. the tan rotatesthe shaft 8, this rotation being transmittedin turn, through the reduction gearing, into an oscillation of the hood' From the foregoing, itis obvious that I have invented a device particularly adaptable for the purpose, and in which the gases expelled through the hood will be thrown outwardly into the room at the desired height i hydrating, removal of steam, condensed moisture, gases, fumes, unpleasant odors and similar things.

Having thus described myrinvention, it is this oscillation of the hood This rotation of This oscillation of the the gases are expelled outwardly" i the hood or where the gases are obvious that various immaterial" modifica- -tionsunay be made in tlre-samewithoutdeparting from the spirit of my invention; ce I do not wish-to be understood as limmyself to the exact construction, ar-

xnt and combination of parts herein run {run shown and described, orvuses mentioned, eX-

eept as limited by the claims.

What 1: claim. as new and desire to secure ei's Patent is:

1. An outlet hood adapt-ed tobe mounted at the outlet of the heated gases from a heater, and means 'for'automatically oscillating said hoe-d relatively otthe' heaterand com prising a spindle rotatably supporting said" hood, a fan at the lower end of said spindle and operableby the gases discharged through v said outlet, and drive means intermediate said tan and hood'for oscillating thelatter during :otation of the fan.

AVG to said heater, and means for 0scillating said hood comprising a spindle rotatably carried by said heater and rotatably ppo said booth-means between said rent 01" said spindle to oscillating moveof said hood, ineansfor adjusting the c oi cseillation'ofsaid hood, and a fan' c'arfii3 i by said spindle in the 'pathof flow of" spindle. I in comblnation, a l121l3'61","1n outlet hood mounted th ereabove at the outletof said heater, a spindleextending' upwardly. from the top or" said heater, and a singleball support5j said-hood and arranged rntermediate the upper end o-t the spindle and said hood, and ineans tor automatically turning said hood and comprisinga fan at'th'e'lowerend'of 1, i, w saidspinule and operable by the gases flowing 90 through the heater and hood, and drive'means intermediate said fan andhood for transmit rug rotation ot'said tan into turning movement of said hood;

NICHOIiAS BRAUN.

hood adapted to be positioned at the" harge end of a heater and to be -osc1llated hood for transmitting rotary he gases through the heater for driving said; 

